Dehumidifiers are essential in any indoor swimming pool. Warm pool water constantly evaporates into the air, driving humidity levels up. Without proper control, that moisture condenses on windows, ceilings, steelwork and hidden cold surfaces inside the building. Over time this leads to peeling paint, rotting timbers, corrosion of metalwork, mould growth and a generally uncomfortable, “clammy” environment for swimmers and spectators. A correctly sized and set up dehumidifier keeps humidity in a safe range, protecting the building fabric and finishes while making the air feel far more comfortable.
Most modern pool dehumidifiers work on the same basic refrigeration/air conditioning cycle that heat pumps and AC units use. Moist, warm air from the pool hall is drawn through the unit and passed over a cold evaporator coil. As the air cools below its dew point, moisture condenses on the coil and drains away as condensate. The now-drier air is then reheated as it passes over the hot condenser coil and returned to the room. In some systems, recovered heat can also be used to help warm the air or even top up the pool water temperature, improving overall efficiency.
At Sussex Heat Pumps Ltd we install, service and repair dehumidifiers specifically designed for indoor pools and associated plant rooms. On a typical service we’ll check the refrigeration circuit, fans and airflow, clean coils and filters, test condensate drains, verify humidity sensor readings and confirm that setpoints and control strategies are appropriate for the space. We also look for signs of corrosion or water damage around the unit and ductwork so issues can be picked up early. If a fault does occur, we can diagnose and repair problems with compressors, fans, controls and refrigerant leaks, always working in line with F-Gas requirements.
Not sure what size dehumidifier you need?
Areas we cover
We’re based in Seaford on the East Sussex coast and cover most of East and West Sussex for heat pump, swimming pool, air conditioning and dehumidifier work.
Our core service area runs along the coast from around Hastings across to Chichester, and inland across the South Downs and surrounding towns and villages.
Typical areas we cover include (but aren’t limited to):
Seaford, Eastbourne, Brighton, Hove, Lewes, Newhaven, Peacehaven, Saltdean, Rottingdean, Shoreham-by-Sea, Lancing, Worthing, Littlehampton, Bognor Regis, Chichester, Arundel, Uckfield, Crowborough, Polegate, Hailsham, Heathfield, Haywards Heath, Burgess Hill, Hassocks, Horsham, Crawley, Bexhill-on-Sea and Hastings.
We also work in many of the smaller villages and rural locations across East Sussex and West Sussex, especially around the South Downs National Park. If you’re just outside the towns listed above, please get in touch with your postcode – if it’s practical for us to reach you, we’ll usually be able to help or at least point you in the right direction.
Book a survey or service
If you’d like us to look at an existing dehumidifier, or you’re planning a new indoor pool and need advice on humidity control, please get in touch.
Include:
• Size and type of pool hall
• Details of any existing dehumidifier (make/model if known)
• Your location and preferred timescales
We’ll come back to you with options and next steps.